Hi Magician, welcome to our Community! Being at home in Vantaa, Finland sounds lovely. I looked into the costs and I believe the Finnish bank number uses a service number. This is the reason for the extra costs, because for other calls to Finnish numbers you didn't get charged extra costs. I understand that the charges come as a shock, however there's not much I can do about them. Please double check the phone numbers that you have to call while you're in Finland to avoid unexpected charges. I hope this clarifies things. If you have any other questions, please feel free to ask me. I'm here for you! 😄